Stronghold generated with no floor

intended, stronghold walls, celing and floors get overwritten by caves

How is this "intended"?

When a mineshaft generates over a ravine or in the air in a cave, what happens? It generates oak planks as a floor. Knowing that, how is it not intended in one structure, and intended in another? No floor = looks bad. Pretty sure floating doors (which need a block to even exist) that pop off with a chunk update nearby, is not intended.

Strongholds just need the same sort of code as mineshafts have to insert a missing floor in if other features are created after strongholds. Since the terrain generator should still know where the stronghold should be, it could go back after it generates a cave/ravine and fill the floor back in. Perhaps the generator should have a new way of marking certain blocks "essential" so instead of deleting them, they will be either replaced with a different block or left alone? (if this is not how mineshafts do it already)

Intended per Jeb. His comment (4 comments down):

No... I wanted the strongholds to be a little messed up. The only room that has a guaranteed shape is the portal room. That's also (unfortunately) why the EoE tracks the portal instead of the entrance.

http://www.reddit.com/r/Minecraft/comments/34dsgl/jens_bergensten_on_twitter_working_on_features/cqts2b8

Intended for 1.8 and intended for 1.9 are different things.

I understand if he wants strongholds to have the chance to be more broken down, but simply deleting the floor (resulting in floating doors/bookshelves, iron bars that are oriented to the "no connections" shape) just looks completely bad and doesn't accomplish that at all.

I believe that thread you linked to was Jeb working on structures to modularly generate, and I've also read the "secret block" Searge teased turned out to be for terrain generation as well.... I would fully hope that this would mean that this problem has a better solution: either pre-made mostly-destroyed rooms that would get swapped out with the inclusion of other structures like ravines, or for a more "dynamic" way to edit the room such as cutting the room more intelligently (no floating blocks or re-oriented iron bars) or even cutting off most of the room and lowering some floor blocks so it looks like the room actually collapsed (maybe rubble at the bottom of the ravine would be cool, or a re-oriented room if iron bars or doors actually had the possibility of being horizontal).